1231076011525 has 6 divisors (see below), whose sum is σ = 1526534254322. Its totient is φ = 984860809200.

The previous prime is 1231076011523. The next prime is 1231076011553. The reversal of 1231076011525 is 5251106701321.

It can be written as a sum of positive squares in 3 ways, for example, as 210131476801 + 1020944534724 = 458401^2 + 1010418^2 .

It is not a de Polignac number, because 1231076011525 - 2¹ = 1231076011523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231076011523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24621520206 + ... + 24621520255.

Almost surely, 2^{1231076011525} is an apocalyptic number.

It is an amenable number.

1231076011525 is a deficient number, since it is larger than the sum of its proper divisors (295458242797).

1231076011525 is an equidigital number, since it uses as much as digits as its factorization.

1231076011525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49243040471 (or 49243040466 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 1231076011525 in words is "one trillion, two hundred thirty-one billion, seventy-six million, eleven thousand, five hundred twenty-five".